navid
ff2f80989b
* update ethernet library and common lib * update runtime values of the lte-softmodem tx and rx threads based on an empirical model git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7709 818b1a75-f10b-46b9-bf7c-635c3b92a50f
122 lines
3.6 KiB
C
122 lines
3.6 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@eurecom.fr
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Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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/*! \file ethernet_lib.h
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* \brief API to stream I/Q samples over standard ethernet
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* \author Katerina Trilyraki, Navid Nikaein
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* \date 2015
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* \version 0.2
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* \company Eurecom
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* \maintainer: navid.nikaein@eurecom.fr
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* \note
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* \warning
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*/
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#include <arpa/inet.h>
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#include <linux/if_packet.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <netinet/ether.h>
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typedef struct {
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// opaque eth data struct
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//struct eth_if *dev;
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// An empty ("") or NULL device identifier will result in the first encountered device being opened (using the first discovered backend)
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int sockfd[4];
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struct sockaddr_in dest_addr[4];
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unsigned int buffer_size;
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unsigned int timeout_ns;
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//struct eth_metadata meta_rx;
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//struct eth_metadata meta_tx;
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unsigned int sample_rate;
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// time offset between transmiter timestamp and receiver timestamp;
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double tdiff;
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// use brf_time_offset to get this value
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int tx_forward_nsamps; //166 for 20Mhz
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// --------------------------------
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// Debug and output control
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// --------------------------------
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int num_underflows;
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int num_overflows;
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int num_seq_errors;
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int num_rx_errors;
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int num_tx_errors;
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uint64_t tx_actual_nsamps; // actual number of samples transmitted
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uint64_t rx_actual_nsamps;
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uint64_t tx_nsamps; // number of planned samples
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uint64_t rx_nsamps;
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uint64_t tx_count; // number pf packets
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uint64_t rx_count;
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//openair0_timestamp rx_timestamp;
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} eth_state_t;
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#define ETH_META_STATUS_OVERRUN (1 << 0)
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#define ETH_META_STATUS_UNDERRUN (1 << 1)
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struct eth_meta_data{
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uint64_t timestamp;
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uint32_t flags;
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uint32_t status;
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unsigned int actual_count;
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};
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typedef struct {
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/* packet's timestamp */
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openair0_timestamp timestamp;
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/* variable declared for alignment purposes (sample size=32 bit) */
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int16_t not_used;
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/* antenna port used to resynchronize*/
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int16_t antenna_id;
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} header_t;
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int ethernet_socket_init(openair0_device *device);
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int ethernet_write_data(openair0_device *device, openair0_timestamp timestamp, void **buff, int nsamps,int antenna_id);
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int ethernet_read_data(openair0_device *device,openair0_timestamp *timestamp,void **buff, int nsamps,int antenna_id);
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void ethernet_socket_opt (openair0_device *device);
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